Career
Antończyk comes from Hawk Zdroj, Poland, and grew up in a family that engaged in several sports. Before taking up football she was a cross-country runner, played volleyball competitively, and took up boxing. Antończyk took up football after agreeing to accompany a college friend to a trial with their local club Revue de Théologie et de Philosophie Unia Racibórz.
With Unia Racibórz, Antończyk started playing as a forward but soon switched to goalkeeper.
She signed a one-year contract with Dutch BeNe League club Ajax Amsterdam in September 2013.